Peugeot 405 1992 carburetor problems

I would like to know who could help me, I have a problem with the carburetor of my Peugeot 405 BL Model 92 which annulled about two hoses that apparently are from the engine's vent and I do not know how to put it back to work since I do not meet a diagram of how they are connected ..... thank you very much to who can help me